山西农业大学学报（自然科学版）2017，Vol.37Issue(10)：719-725,748,8.
三江平原湿地植被—水位转换函数研究
Study on vegetation-water level transfer function for wetlands in Sanjiang Plain .
摘要
Abstract
[Objective]Plant macrofossil is an important biological proxy for palaeoecology study .The transfer function of vegetation-water level can provide an effective way to reconstruct accurate quantitative palaeoenvironment and palae-oclimate .[Methods] In this paper ,the WA (Weighted Averaging ) and WAPLS (Weighted Averaging Partial Least Squares) models of rioja package in R were used to establish the vegetation-water level transfer function of Sanjiang Plain .[Results]The results showed that the prediction performance of the WAPLS model was better than that of the WA model .The third component of the WAPLS model had the best prediction performance ,with the lowest RMSEP value (3.69 m) and the highest R2 value (0.52) .After data filtering ,the prediction performance of the two models were improved ,the prediction performance of the fourth component of the WAPLS model was the best ,with the low-est RMSEP 2.83 ,which reduced by 23.3% compared to the previous value .The accuracy reached to ± 2.83 cm ,this result was relatively ideal .[Conclusion]This study provided a method and guarantee for the accurate quantitative recon-struction of the water level in Sanjiang Plain .关键词
除趋势对应分析(DCA)/WA模型/WAPLS模型/预测能力Key words
Detrended Correspondence Analysis(DCA)/WA model/WAPLS model/Predication performance分类
资源环境引用本文复制引用
王春玲,郭晋平,王国平,娄彦景..三江平原湿地植被—水位转换函数研究[J].山西农业大学学报（自然科学版）,2017,37(10):719-725,748,8.基金项目
国家自然科学基金(41401099) （41401099）
山西农业大学科技创新基金项目(2015YJ21、2016015) （2015YJ21、2016015）
